CVE-2026-53225

mediumCVSS 5.5covered by 31 sourcesfirst seen 2026-06-09

Multiple vulnerabilities have been discovered in Ubuntu Linux kernel. Some of them allow an attacker to cause privilege escalation, remote denial of service and an unspecified security issue by the editor.

CSIRTS triage

What: Multiple vulnerabilities in the Ubuntu Linux kernel enable privilege escalation, denial of service, and unspecified security issues.
Who is affected: Ubuntu systems running affected kernel versions.
Urgency: High; privilege escalation vulnerabilities require urgent kernel updates.
Action: Apply kernel security updates from Ubuntu to all affected systems.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.

Advisory coverage (31)

unknownUSN-8630-5: Linux kernel (Raspberry Pi) vulnerabilitiesubuntu · 2026-08-25
lowUSN-8661-2: Linux kernel (Low Latency) vulnerabilitiesubuntu · 2026-08-21
unknownUSN-8669-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu · 2026-08-21
unknownUSN-8662-2: Linux kernel (FIPS) vulnerabilitiesubuntu · 2026-08-21
unknownUSN-8664-1: Linux kernel (NVIDIA BaseOS) vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8663-1: Linux kernel (NVIDIA) vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8630-4: Linux kernel (AWS) vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8662-1: Linux kernel vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8661-1: Linux kernel vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8660-1: Linux kernel vulnerabilitiesubuntu · 2026-08-20
unknownUSN-8630-3: Linux kernel (Oracle) vulnerabilitiesubuntu · 2026-08-18
unknownUSN-8636-2: Linux kernel (Oracle) vulnerabilitiesubuntu · 2026-08-18
unknownUSN-8629-3: Linux kernel (HWE) vulnerabilitiesubuntu · 2026-08-18
unknownUSN-8645-1: Linux kernel (Oracle) vulnerabilitiesubuntu · 2026-08-18
unknownUSN-8631-4: Linux kernel (Azure CVM) vulnerabilitiesubuntu · 2026-08-17
unknownUSN-8629-2: Linux kernel (AWS) vulnerabilitiesubuntu · 2026-08-17
unknownMultiple vulnerabilities in Ubuntu Linux kernel (August 14, 2026)cert-fr-avis · 2026-08-14
unknownUSN-8631-3: Linux kernel (NVIDIA Tegra IGX) vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8633-2: Linux kernel vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8637-1: Linux kernel (OEM) vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8631-2: Linux kernel (Oracle) vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8630-2: Linux kernel vulnerabilitiesubuntu · 2026-08-13
unknownUSN-8636-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8635-1: Linux kernel (Azure) vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8634-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8633-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8631-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8630-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
unknownUSN-8629-1: Linux kernel vulnerabilitiesubuntu · 2026-08-12
unknownMultiple vulnerabilities in Microsoft Azure Linux (June 29, 2026)cert-fr-avis · 2026-06-29
mediumCVE-2026-53225: sctp: fix uninit-value in __sctp_rcv_asconf_lookup()msrc · 2026-06-09

External references

NVD record for CVE-2026-53225

CVE.org record

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